Method and means for teaching manual skills
United States Patent 2939224

Inventors:
Rose, Nelson P.
Rose, Elizabeth H.
Publication Date:
06/07/1960
Assignee:
Rose, Nelson P.
Rose, Elizabeth H.
Primary Class:
Other Classes:
473/409, 352/39, 473/266
International Classes:
A63B69/36; G09B5/02; A63B69/00; G09B5/00
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